Tropical forests have provided us many kinds of food, medicine and (32)______. They also (33)______ flood, keep water clean and slow down the Green House effect. However, the tropical forests are being (34)______ to make room for farms and fields. Besides that, forest fires are the most terrible destruction. About 20 million hectares of forests are lost every year. The World Wildlife Fund is working to protect and save forests which are in (35)______, to plant new trees and to slow the Greenhouse Effect. It encourages governments to think about the forests and their importance. 32. A. industrial B. industrialist C. industry D. industrialize 33. A. reduces B. reduce C. reducing D. reduced 34. A. destroyed B. destroy C. destroying D. to destroy 35. A. dangerously B. endangered C. dangerous D. danger